CN111704481B - Production process of antibacterial polished brick, preparation method of antibacterial agent and antibacterial polished brick - Google Patents
Production process of antibacterial polished brick, preparation method of antibacterial agent and antibacterial polished brick Download PDFInfo
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- CN111704481B CN111704481B CN202010647372.9A CN202010647372A CN111704481B CN 111704481 B CN111704481 B CN 111704481B CN 202010647372 A CN202010647372 A CN 202010647372A CN 111704481 B CN111704481 B CN 111704481B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/26—Phosphorus; Compounds thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The invention discloses a production process of an antibacterial polished tile, which comprises the following specific steps: s1) cleaning and polishing the glaze of the common polished tile to obtain the polished tile to be processed; s2) dripping the instantly mixed antibacterial agent and the antifouling agent A on the surface of the glaze layer of the polished tile to be processed, and then pressing and grinding by a grinding disc until the glossiness meets the set requirement; s3) dripping a sterilization rate regulator on the surface of the glaze layer of the polished tile to be processed, and pressing and grinding the polished tile by a grinding disc until the glossiness meets the set requirement; s4) dripping an antifouling agent B containing antibacterial liquid on the surface of the glaze layer of the polished tile to be processed, and pressing and polishing the polished tile by a grinding disc until the glossiness meets the set requirement to obtain the antibacterial polished tile. The invention also provides a preparation method of the antibacterial agent used in the production process of the antibacterial polished tile, and the antibacterial polished tile prepared according to the production process of the antibacterial polished tile has good antibacterial effect and stable and durable antibacterial performance.
Description
Technical Field
The invention relates to the technical field of ceramics, in particular to a production process of an antibacterial polished brick, a preparation method of an antibacterial agent and the antibacterial polished brick.
Background
The antibacterial polishing brick of the prior art is formed by adding antibacterial materials into the glaze layer and then sintering the glaze layer, the surface glaze layer needs to be polished after sintering, the glaze layer containing the antibacterial materials is polished and left on the brick surface less and non-uniformly, so the concentration of the antibacterial materials on the glaze layer needs to be improved, the antibacterial effect of the antibacterial polishing brick is unstable due to the fact that the glaze in the polishing process is removed more, the antibacterial polishing brick is made, the detection is mostly not up to standard, the removed glaze layer containing the antibacterial materials is wasted as huge resources, and the production cost of enterprises is increased.
Disclosure of Invention
The invention provides a production process of an antibacterial polished brick, a preparation method of an antibacterial agent and the antibacterial polished brick. The preparation method of the antibacterial agent for the production process of the antibacterial polished tile provided by the invention has the advantages of simple process, easiness in implementation and low cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a production process of an antibacterial polished tile comprises the following specific steps:
s1) cleaning and polishing the glaze surface of the common polished tile according to the conventional polished tile process to obtain the polished tile to be treated;
s2) dripping the antibacterial agent and the antifouling agent A which are respectively subpackaged and are mixed instantly before dripping the surface of the glaze layer on the surface of the polished brick to be processed, and then grinding by a grinding disc until the glossiness meets the set requirement;
s3) dripping a sterilization rate regulator on the surface of the glaze layer of the polished tile to be processed, and grinding the polished tile by a grinding disc until the glossiness meets the set requirement to obtain the antibacterial polished tile.
Preferably, the method further comprises the following steps:
s4) dripping an antifouling agent B containing antibacterial liquid on the surface of the glaze layer of the polished tile to be processed, and pressing and polishing the polished tile by a grinding disc until the glossiness meets the set requirement to obtain the antibacterial polished tile.
The common polished tiles comprise glazed polished tiles, full polished tiles and microcrystal polished tiles, and the production process of the antibacterial polished tiles can adopt the glazed polished tiles as a base material.
Preferably, the mixing time of the instant mixing in the step S2 is 1 to 60 seconds.
Preferably, the antibacterial agent comprises several of nano zinc oxide, nano zirconium phosphate silver-loaded or nano silicon dioxide silver-loaded, and the antibacterial agent is suspension; the antifouling agent A is nano silicon dioxide or silica sol; the sterilization rate regulator is silver nitrate solution, and the content of silver nitrate in the silver nitrate solution is 500-2000 ppm; the antifouling agent B is silicone oil or silicone grease, the antibacterial liquid contained in the antifouling agent B is DC-5700 or SQ5700, and the concentration of the antibacterial liquid is 1-2%.
Preferably, the particle size of the antibacterial agent is 8-35 nanometers; in the step S2, the dropping amount of the antibacterial agent and the antifouling agent A is 20-50ml per square meter, and the mixing volume ratio of the antibacterial agent to the antifouling agent A is 1: 4; in the step S3, the dropping amount of the sterilization rate regulator is 0.5-5ml per square meter; in the step S4, the dropping amount of the antifouling agent B is 1-5ml per square meter.
Preferably, the rotating speed of the grinding disc is 55-65 r/s, the pressure applied by the grinding disc is 35-58 Pa, and the requirement on the glossiness in each step is 85-100 degrees.
Further, the invention also provides a preparation method of the antibacterial agent for the production process of the antibacterial polished tile, which is characterized by comprising the following steps:
p1) weighing raw materials for preparing the antibacterial agent, wherein the raw materials comprise: antibacterial powder, a dispersing agent, a defoaming agent and water;
p2) mixing the prepared raw materials uniformly, and adopting an ultrasonic dispersion machine to break up agglomerates in the mixture, or putting the mixture into a sand mill for grinding to prepare the antibacterial powder suspension;
p3) the antibacterial powder suspension is stable and uniform, and has no layering, precipitation or gelation phenomenon, thus obtaining the antibacterial agent.
Further, the antibacterial powder is a plurality of nano zinc oxide, nano zirconium phosphate silver or nano silicon dioxide silver, the purity of the antibacterial powder is higher than 99%, and the particle size of the antibacterial powder is 10-50 nanometers.
Further, the antibacterial agent comprises the following raw materials in percentage by mass: 1 to 30 percent of antibacterial powder, 0.1 to 5 percent of dispersant and 60 to 98.9 percent of water.
Furthermore, the invention also provides an antibacterial polished brick which is prepared according to the production process of the antibacterial polished brick.
The beneficial effects of the invention are as follows:
according to the production process of the antibacterial polished tile, the antibacterial agent and the antibacterial liquid are added in steps S2 and S3 and are respectively pressed and polished, antibacterial agent filling and antifouling treatment are carried out on capillary pores, bubbles and air holes on the surface of a glaze layer of a common polished tile, the antibacterial agent, the antifouling agent A and the sterilization rate regulator can effectively fill micro-nano capillary pores on the glaze surface, a uniform antibacterial film layer is formed, and the antifouling agent A can improve the stability and the durability of the antibacterial film layer.
Further, step S4 is to polish by dropping antifouling agent B containing antibacterial liquid, so as to fill the bubbles or micropores formed by evaporation of water vapor during polishing and heating, and to perform sterilization, antifouling and antibacterial treatments at the same time, wherein the antifouling agent B containing DC5700 or QS5700 antibacterial liquid has a broad-spectrum sterilization effect, and can improve the antibacterial performance and antifouling capacity of the antibacterial film layer of the antibacterial polished tile, and can also improve the washing resistance and have good antibacterial durability.
The antibacterial polished tile prepared by the production process of the antibacterial polished tile has a good antibacterial effect and stable and durable antibacterial performance.
The antibacterial polished brick can be produced by adopting a common non-antibacterial finished polished brick sold on the market as a base material, is also suitable for a ceramic brick production factory as a processing method for upgrading the common polished brick into the antibacterial polished brick, and has good applicability and flexibility and low manufacturing cost. The antibacterial polished tile has broad-spectrum sterilization effect and better market application range.
Detailed Description
The technical solution of the present invention is further described below in specific embodiments.
A production process of an antibacterial polished tile comprises the following specific steps:
s1) cleaning and polishing the glaze surface of the common polished tile according to the conventional polished tile process to obtain the polished tile to be treated;
s2) dripping the antibacterial agent and the antifouling agent A which are respectively subpackaged and are mixed instantly before dripping the surface of the glaze layer on the surface of the polished brick to be processed, and then grinding by a grinding disc until the glossiness meets the set requirement;
s3) dripping a sterilization rate regulator on the surface of the glaze layer of the polished tile to be processed, and grinding the polished tile by a grinding disc until the glossiness meets the set requirement to obtain the antibacterial polished tile.
The common finished polished tiles comprise glazed polished tiles, hollow polished tiles and microcrystalline polished tiles, and the production process of the antibacterial polished tiles can adopt the basic materials.
Cleaning the common polished tile through step S1, so as to reduce the pollution on the surface and the adverse effect of impurities on the antibacterial effect;
step S2), a certain pressure is applied, the grinding disc rotating at a high speed extrudes the antibacterial agent into the capillary holes of the glaze layer of the polished tile to be processed, the antibacterial agent enters the inner surface layer of the polished tile to be processed, and the polished tile is difficult to scrape, high in concentration, durable in antibacterial property and good in efficiency;
the pressing and polishing are carried out until the glossiness reaches the set requirement, and the requirement is the same as the requirement of ultra-clean polishing operation in the industry;
the antibacterial agent and the antifouling agent A are instantly mixed and then are dripped, so that the mutual interference of the antibacterial agent and the antifouling agent A to form gel is reduced, the antibacterial effect of the antibacterial agent is prevented from being reduced, and the production loss and waste which cannot be operated after the gel is formed are also avoided;
step S3 is to add the sterilization rate adjuster and polish it to perform sterilization and antibacterial treatment with the bubbles or fine pores in the filled antibacterial film layer.
According to the production process of the antibacterial polished tile, the antibacterial agent, the antifouling agent A and the sterilization rate regulator are added in multiple times and are respectively pressed and polished, antibacterial agent filling and antifouling treatment are carried out on capillary holes, bubbles and air holes on the surface of a glaze layer of a common polished tile, the antibacterial agent, the antifouling agent A and the sterilization rate regulator can effectively fill micro-nano capillary holes on the glaze surface and form a uniform antibacterial film layer, the antibacterial agent A is fixed on the antibacterial film layer to form a composite antifouling antibacterial film, and therefore stability and durability of the antibacterial film layer are guaranteed.
The above-mentioned antifouling means to prevent solid particles from contaminating any fine gaps inside the polished tile to be treated by filling and compounding with an antibacterial material.
Preferably, the method further comprises the following steps:
s4) dripping an antifouling agent B containing an antibacterial liquid on the surface of the glaze layer of the polished tile to be processed, and pressing and polishing the polished tile by a grinding disc until the glossiness reaches the set requirement to obtain the antibacterial polished tile.
Step S4, an anti-fouling agent B containing an antibacterial liquid is dripped and polished, bubbles or micro pores formed by vapor evaporation in the polishing and heating process can be filled, and sterilization, anti-fouling and antibacterial treatment are simultaneously carried out, wherein the anti-fouling agent B containing a DC5700 or QS5700 antibacterial liquid has a broad-spectrum sterilization effect, can improve the antibacterial performance and the anti-fouling capability of an antibacterial film layer of the antibacterial polished tile, can also improve the flushing resistance, and has good antibacterial durability.
Preferably, the mixing time of the instant mixing in the step S2 is 1 to 60 seconds.
The antimicrobial agent and the antifouling agent A are, if premixed, gelled in a short time, thereby losing fluidity and workability, and the occurrence of gelation can be avoided by instantaneous mixing, and the antimicrobial agent is uniformly coated with the antifouling agent A while the antimicrobial effectiveness of the antimicrobial agent is ensured. It is difficult to achieve an ordered operation with a time of less than 1 second, and a time of more than 60 seconds has a risk of forming a gel, so that the mixing time for this instantaneous mixing is preferably set to 1 to 60 seconds.
Preferably, the antibacterial agent comprises several of nano zinc oxide, nano zirconium phosphate silver-loaded or nano silicon dioxide silver-loaded, and the antibacterial agent is suspension; the antifouling agent A is nano silicon dioxide or silica sol; the sterilization rate regulator is silver nitrate solution, and the content of silver nitrate in the silver nitrate solution is 500-2000 ppm; the antifouling agent B is silicone oil or silicone grease, the antibacterial liquid contained in the antifouling agent B is DC-5700 or SQ5700, and the concentration of the antibacterial liquid is 1-2%.
The antibacterial agent contains nano zinc oxide or carries metallic silver, zinc or silver ions are slowly released in a medium containing water, and when the zinc or silver ions are contacted with a bacterial cell membrane, the zinc or silver ions react with sulfydryl and amino in the bacterial cell to destroy a membrane protein structure of the bacteria so as to kill the bacteria; the nano titanium dioxide is a photocatalyst bactericide and has a good sterilization effect.
The antibacterial agent can be adjusted to use different antibacterial agents according to the requirements of target sterilization varieties, such as photocatalyst bactericide nano titanium dioxide, nano metal silver and the like.
The antifouling agent A with the component of nano silicon dioxide or silica sol forms a solid film layer in the polishing process, and the antibacterial agent is dispersed in the solid film layer, so that the antifouling agent A can improve the strength and the service life of the formed antibacterial film layer.
The silver nitrate solution contains silver ions with good sterilization effect, has good fluidity and permeability, is easy to penetrate into air bubbles and capillary pores which are not filled with the antibacterial agent, and can activate the activity of the silver ions in other antibacterial agents.
The antifouling agent B is silicone oil or silicone grease, the antibacterial agent contained in the antifouling agent B is DC-5700 or SQ5700, the concentration of the antibacterial agent is 1-2%, the DC-5700 is a product of American company, and the SQ-5700 is a domestic antibacterial agent, and the antifouling agent B has good antibacterial effect and excellent fluidity and permeability. DC-5700 or SQ5700 is a non-releasing active agent, does not exude, migrate, and is not consumed by microorganisms, can endow the surface of the substrate with excellent washing durability, is sterilized by a special physical and chemical mechanism, does not generate a drug resistance phenomenon, has an excellent broad-spectrum antibacterial effect on various microorganisms, and has an excellent anti-mite effect.
The antibacterial polished tile has a broad-spectrum sterilization effect, has a better market application range, and can meet the requirements of customers on sterilization requirements of different strains.
Preferably, the particle size of the antibacterial agent is 8-35 nanometers; in the step S2, the dropping amount of the antibacterial agent and the antifouling agent A is 20-50ml per square meter, and the mixing volume ratio of the antibacterial agent to the antifouling agent A is 1: 4; in the step S3, the dropping amount of the sterilization rate regulator is 0.5-5ml per square meter; in the step S4, the dropping amount of the antifouling agent B is 1-5ml per square meter.
The grain size of the antibacterial agent on the market is 50-120 nanometers, and the smaller the grain size, the higher the activity of the antibacterial agent is, and the better the bactericidal performance is. When the antibacterial agent is prepared, ultrasonic equipment is used for scattering or a sand mill is used for grinding, the particle size is controlled to be 8-35 nanometers, and the antibacterial activity of the antibacterial agent, the antifouling agent B or the sterilization rate regulator can be improved.
Preferably, the rotating speed of the grinding disc is 55-65 r/s, the pressure applied by the grinding disc is 35-58 Pa, and the requirement on the glossiness in each step is 85-100 degrees.
The rotating speed of the grinding disc is set to be 55-65 r/s, the pressure applied by the grinding disc is 35-58 Pa, the grinding disc is reasonable, too high rotating speed and pressure easily cause excessive damage, unnecessary loss is increased, and too low rotating speed and pressure cannot achieve the effect of extrusion.
The requirement of the gloss in each step is set to 85-100 deg., ensuring that the level of gloss is within the acceptable standard range of 90 deg. + -5 deg..
Further, the invention also provides a preparation method of the antibacterial agent for the production process of the antibacterial polished tile, which comprises the following steps:
p1) weighing the raw materials for preparing the antibacterial agent, comprising: antibacterial powder, a dispersing agent, a defoaming agent and water;
p2) mixing the prepared raw materials uniformly, and adopting an ultrasonic dispersion machine to break up agglomerates in the mixture, or putting the mixture into a sand mill for grinding to prepare the antibacterial powder suspension;
p3) the antibacterial powder suspension is stable and uniform, and has no layering, precipitation or gelation phenomenon, thus obtaining the antibacterial agent.
The preparation method of the antibacterial agent has the advantages of simple process, easy implementation and low cost.
The antibacterial powder suspension needs to be subjected to a intermiscibility experiment, uniform suspension can be formed after uniform mixing, the stable quality guarantee period is more than one week, no layering, precipitation or gelation phenomenon exists, the antibacterial agent can have a suspension quality guarantee period of more than 30 days, and the antibacterial agent can be prevented from agglomeration after polishing.
The requirements on equipment and materials for manufacturing the suspension with the particle size of less than 8 nanometers are high, the production efficiency is low, the cost is high, and the cost performance is not high compared with the antibacterial effect, so that the particle size of the antibacterial powder suspension is limited to 8-35 nanometers, and the suspension is suitable.
The dispersing agent is a commercially available nonionic surfactant or an anionic surfactant.
The defoaming agent is a mixture of a commercially available nonionic defoaming agent and an anion defoaming agent, the content of the nonionic defoaming agent is 0.5-2.5%, and the content of the anion defoaming agent is 20 ppm.
The gel-like antibacterial agent can not be used within one day, and the common antibacterial agent sold in the market has difficulty in meeting the requirement. Therefore, the antibacterial agent has good stability and the antibacterial effect has good durability.
Further, the antibacterial powder is a plurality of nano zinc oxide, nano zirconium phosphate silver or nano silicon dioxide silver, the purity of the antibacterial powder is higher than 99%, and the particle size of the antibacterial powder is 10-50 nanometers.
The nano zinc oxide, the nano zirconium phosphate silver or the nano silicon dioxide silver all contain silver ions with good bactericidal effect, the purity is higher than 99 percent, the adverse effect of impurities on the antibacterial effect can be avoided, the particle size is 10-50 nanometers and is closer to the target requirement of 8-35 nanometers, the treatment load of a sand mill can be reduced, and the manufacturing cost can be reduced.
Preferably, the antibacterial agent comprises the following raw materials in percentage by mass: 1 to 30 percent of antibacterial powder, 0.1 to 5 percent of dispersant and 60 to 98.9 percent of water.
The dispersing agent is a commercially available nonionic surfactant or anionic surfactant, and the antibacterial powder can be uniformly distributed in the antibacterial powder suspension by adding a small amount of dispersing agent; it is prepared with tap water containing no particle impurity.
The invention also provides an antibacterial polished brick which is prepared according to the production process of the antibacterial polished brick.
Specifically, the antibacterial polished tile prepared by the production process of the antibacterial polished tile has a good antibacterial effect and stable and durable antibacterial performance. The antibacterial polished tile can be produced by adopting a common non-antibacterial finished polished tile sold on the market as a base material, is also suitable for a ceramic tile production factory as a processing method for upgrading the common polished tile into the antibacterial polished tile, and has good applicability and flexibility and low manufacturing cost.
The following were prepared by using a commercially available non-antibacterial polished tile of the same lot of a certain brand as a substrate.
Examples 1 to 5
The antimicrobial polished tiles of the examples were prepared as follows:
1. the production process of the antibacterial polished tile comprises the following steps:
a production process of an antibacterial polished tile comprises the following specific steps:
s1) cleaning and polishing the glaze surface of the common polished tile according to the conventional polished tile process to obtain the polished tile to be treated;
s2) dripping the antibacterial agent and the antifouling agent A which are respectively subpackaged and are mixed instantly before dripping the surface of the glaze layer on the surface of the polished brick to be processed, and then grinding by a grinding disc until the glossiness meets the set requirement;
s3) dripping a sterilization rate regulator on the surface of the glaze layer of the polished tile to be processed, and pressing and grinding the polished tile by a grinding disc until the glossiness meets the set requirement;
s4) dripping an antifouling agent B containing antibacterial liquid on the surface of the glaze layer of the polished tile to be processed, and pressing and polishing the polished tile by a grinding disc until the glossiness meets the set requirement to obtain the antibacterial polished tile.
The mixing time of the instantaneous mixing in the step S2 is 1 to 60 seconds.
The antibacterial agent comprises a plurality of nano zinc oxide, nano zirconium phosphate silver-loaded or nano silicon dioxide silver-loaded, and the antibacterial agent is suspension; the antifouling agent A is nano silicon dioxide or silica sol; the sterilization rate regulator is silver nitrate solution, and the content of silver nitrate in the silver nitrate solution is 500-2000 ppm; the antifouling agent B is silicone oil or silicone grease, the antibacterial liquid contained in the antifouling agent B is DC-5700 or SQ5700, and the concentration of the antibacterial liquid is 1-2%.
The grain size of the antibacterial agent is 8-35 nanometers; in the step S2, the dropping amount of the antibacterial agent and the antifouling agent A is 20-50ml per square meter, and the mixing volume ratio of the antibacterial agent to the antifouling agent A is 1: 4; in the step S3, the dropping amount of the sterilization rate regulator is 0.5-5ml per square meter; in the step S4, the dropping amount of the antifouling agent B is 1-5ml per square meter.
The rotating speed of the grinding disc is 55-65 r/s, the pressure applied by the grinding disc is 35-58 Pa, and the requirement on the glossiness in each step is 85-100 degrees.
2. The preparation method of the antibacterial agent dripped in the production process of the antibacterial polished tile in the step 1 comprises the following steps:
p1) weighing raw materials for preparing the antibacterial agent, wherein the raw materials comprise: antibacterial powder, a dispersant and water;
p2) mixing the prepared raw materials uniformly, and adopting an ultrasonic dispersion machine to break up agglomerates in the mixture, or putting the mixture into a sand mill for grinding to prepare the antibacterial powder suspension;
p3) the antibacterial powder suspension is stable and uniform, and has no layering, precipitation or gelation phenomenon, thus obtaining the antibacterial agent.
The antibacterial powder is selected from a plurality of nano zinc oxide, nano zirconium phosphate silver-loaded or nano silicon dioxide silver-loaded, the purity of the antibacterial powder is higher than 99%, and the particle size of the antibacterial powder is 10-50 nanometers.
The dispersing agent is a commercially available nonionic surfactant or an anionic surfactant.
The defoaming agent is a mixture of a commercially available nonionic defoaming agent and an anion defoaming agent, the content of the nonionic defoaming agent is 0.5-2.5%, and the content of the anion defoaming agent is 20 ppm.
3. The antibacterial agent comprises the following raw materials in percentage by mass: 1-30% of antibacterial powder, 0.1-5% of dispersant and 60-98.9% of water; the components and percentages of the antibacterial powders added to the antibacterial agents prepared in examples 1 to 5 are different, and specific numerical values are detailed in table 1.
4. The substrates of the non-antibacterial polished tiles, the antibacterial polished tiles prepared in examples 1 to 5 were sampled according to the JC/T897-2014 "antibacterial ceramic article antibacterial Properties" standard, and the relevant antibacterial ratio and antibacterial durability properties were measured, and the results are shown in Table 1.
Comparative examples 1 to 8
1. The antibacterial polished tile of each comparative example was prepared using example 3 as a comparative model, and the difference between each comparative example and example 3 was: the steps included in the production process of the antibacterial polished tile are different from the added antibacterial materials; the steps involved in the other production processes of each comparative example are specified in Table 2.
2. The antibacterial polished tiles manufactured in the respective comparative examples were sampled according to JC/T897-2014 "antibacterial property of antibacterial ceramic articles" standards, and the relevant antibacterial ratio and antibacterial durability property were tested, and the results of the tests are shown in Table 2.
TABLE 1 data and information on and test results of the examples
TABLE 2 comparative data and information and test results
The following is an analysis explanation based on the above cases and test results of the respective examples and comparative examples:
1. according to the standard requirements of JC/T897-2014 antibacterial ceramic product antibacterial performance, the antibacterial rate (%) of the antibacterial performance is more than or equal to 90 percent and qualified, the antibacterial rate (%) of the antibacterial durability is more than or equal to 85 percent and unqualified, and the antibacterial rate (%) of the antibacterial durability of the non-antibacterial polished tile of the base material is obviously not antibacterial.
2. The results of the tests of examples 1 to 5 were analyzed, and the antibacterial performance and antibacterial rate (%) of the antibacterial durability of examples 1 to 5 were all acceptable, and there was a very significant difference from the antibacterial performance of the base material, indicating that the process for producing the antibacterial polished tile of the present invention has significant effects, and that the antibacterial agent and the antibacterial polished tile produced have good antibacterial effects and good durability, wherein the step of the process for producing example 5 does not include step S4, and the antibacterial polished tile produced in example 5 has slightly inferior antibacterial durability to that of examples 1 to 4, indicating that the process for producing the antibacterial polished tile comprising S1, S2, S3 and S4 can achieve the best results.
3. The difference between comparative example 1 and example 3 is that: the steps of the production process of comparative example 1 do not include steps S3 and S4, and no sterilization rate modifier or anti-fouling agent B containing an antibacterial liquid is added, so that the antibacterial effect of the antibacterial polished tile prepared in comparative example 1 is not high, and the antibacterial rate (%) of antibacterial property and antibacterial durability is not satisfactory.
4. The comparative example 2 differs from example 3 in that: the mixing time of the instant mixing in the step S2 was 90 seconds, which was more than 60 seconds, and the mixed solution contained some gel particles, resulting in poor antibacterial effect of the antibacterial polished tile prepared in comparative example 2, and the antibacterial rate (%) of antibacterial performance was not satisfactory.
5. Comparative example 3 differs from example 3 in that: the dropwise addition amount of the antibacterial agent and the antifouling agent A in the step S2 is only 10 ml/square meter and is less than the minimum dropwise addition amount of 20 ml/square meter, so that the antibacterial polished tile prepared in the comparative example 3 has poor antibacterial effect, and the antibacterial rate (%) of antibacterial performance and antibacterial durability can not meet the qualified requirement, which indicates that the dropwise addition amount of the antibacterial agent and the antifouling agent A in the step S2 is more preferably controlled to be more than 20 ml/square meter.
6. Comparative example 4 differs from example 3 in that: the dropwise adding amount of the antibacterial agent and the antifouling agent A in the step S2 is mostly 60 ml/square meter and is more than 50 ml/square meter, the antibacterial polished tile prepared by the comparative example 4 has a good antibacterial effect, the antibacterial rate (%) of the antibacterial property and the antibacterial durability is qualified, but the antibacterial rate is not obviously different from the detection result of the example 3, and the control of the dropwise adding amount of the antibacterial agent and the antifouling agent A in the step S2 is more suitable for being within 50 ml/square meter.
7. Comparative example 5 differs from example 3 in that: in the step S3, the addition amount of the sterilization rate regulator is only 0.2ml per square meter and is less than the lowest addition amount of 0.5ml per square meter, the antibacterial polished tile prepared in the comparative example 5 has poor antibacterial effect, the antibacterial rate (%) of antibacterial performance and the antibacterial durability do not reach the standard, and the addition amount of the sterilization rate regulator in the step S3 is preferably controlled to be more than 0.5ml per square meter.
8. Comparative example 6 differs from example 3 in that: the dropwise addition amount of the sterilization rate adjusting agent in the step S3 is mostly 7ml per square meter and is more than 5ml per square meter, the antibacterial polished tile prepared by the comparative example 6 has a good antibacterial effect, the antibacterial rate (%) of antibacterial performance and the antibacterial durability is qualified, but the detection result is not obviously different from that of the example 3, and the dropwise addition amount of the sterilization rate adjusting agent in the step S3 is preferably controlled within 5ml per square meter.
9. Comparative example 7 differs from example 3 in that: in the step S4, the addition amount of the antifouling agents B containing the antibacterial liquid is only 0.2ml per square meter and is less than the minimum addition amount of 0.5ml per square meter, the antibacterial effect of the antibacterial polished tile prepared by the comparative example 7 is not good enough, the antibacterial rate (%) of antibacterial performance and antibacterial durability does not reach the standard, and the addition amount of the antifouling agents B containing the antibacterial liquid in the step S4 is more suitable for controlling the addition amount of the antifouling agents B containing the antibacterial liquid to be more than 0.5ml per square meter.
10. Comparative example 8 differs from example 3 in that: in the step S4, the number of the added antifouling agents B containing the antibacterial liquid is at most 6.5 ml/square meter, and is more than 5 ml/square meter, which is the highest, and the antibacterial polished tile prepared by the comparative example 8 has a good antibacterial effect, and the antibacterial durability and antibacterial rate (%) of the antibacterial polished tile is qualified, but no obvious difference is found from the detection result of the example 3, which indicates that the amount of the added antifouling agents B containing the antibacterial liquid in the step S4 is preferably controlled within 5 ml/square meter.
In conclusion, the antibacterial polished tile prepared by the production process of the antibacterial polished tile has a remarkable antibacterial effect, the antibacterial agent and the prepared antibacterial polished tile have good antibacterial effect and good durability, and the production process of the antibacterial polished tile comprises S1, S2, S3 and S4, so that the best effect can be obtained.
The antibacterial polished tile can be produced by adopting a common non-antibacterial finished glazed tile sold as a base material, is also suitable for a ceramic glazed tile production factory as a processing method for upgrading a common polished tile into the antibacterial polished tile, and has good applicability and flexibility, easy implementation and low manufacturing cost.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (5)
1. The production process of the antibacterial polished tile is characterized by comprising the following specific steps:
s1) cleaning and polishing the glaze surface of the common polished tile according to the conventional polished tile process to obtain the polished tile to be treated;
s2) dripping the antibacterial agent and the antifouling agent A which are respectively subpackaged and are mixed instantly before dripping the surface of the glaze layer on the surface of the polished brick to be processed, and then grinding by a grinding disc until the glossiness meets the set requirement;
s3) after being processed by S2), the surface of the glaze layer of the polished tile is dripped with a sterilization rate regulator, and the polished tile is pressed by a grinding disc until the glossiness meets the set requirement, thus obtaining the antibacterial polished tile;
further comprising the steps of:
s4) dripping an antifouling agent B containing antibacterial liquid on the surface of the glaze layer of the polished tile to be processed, and pressing and polishing the polished tile by a grinding disc until the glossiness meets the set requirement to obtain the antibacterial polished tile;
the mixing time of the instantaneous mixing in the step S2 is 1-60 seconds;
the antibacterial agent comprises a plurality of nano zinc oxide, nano zirconium phosphate silver-loaded or nano silicon dioxide silver-loaded, and the antibacterial agent is suspension; the antifouling agent A is nano silicon dioxide or silica sol; the sterilization rate regulator is a silver nitrate solution, and the content of silver nitrate in the silver nitrate solution is 500-2000 ppm; the antifouling agent B is silicone oil or silicone grease, the antibacterial liquid contained in the antifouling agent B is DC-5700 or SQ5700, and the concentration of the antibacterial liquid is 1-2%;
the grain size of the antibacterial agent is 8-35 nanometers; in the step S2, the dropping amount of the antibacterial agent and the antifouling agent A is 20-50ml per square meter, and the mixing volume ratio of the antibacterial agent to the antifouling agent A is 1: 4; in the step S3, the dropping amount of the sterilization rate regulator is 0.5-5ml per square meter; in the step S4, the dropping amount of the antifouling agent B is 1-5ml per square meter;
the rotating speed of the grinding disc is 55-65 r/s, the pressure applied by the grinding disc is 35-58 Pa, and the requirement on the glossiness in each step is 85-100 degrees.
2. A method for preparing an antibacterial agent used in the process for producing an antibacterial polished tile according to claim 1, comprising the steps of:
p1) weighing raw materials for preparing the antibacterial agent, wherein the raw materials comprise: antibacterial powder, a dispersing agent, a defoaming agent and water;
p2) mixing the prepared raw materials uniformly, and adopting an ultrasonic dispersion machine to break up agglomerates in the mixture, or putting the mixture into a sand mill for grinding to prepare antibacterial powder suspension;
p3) the antibacterial powder is suspended and is stable and uniform, and no layering, precipitation or gelation phenomenon exists, so that the antibacterial agent is prepared.
3. The method for preparing the antibacterial agent used for the production process of the antibacterial polished tile according to claim 2, wherein the antibacterial powder is a plurality of nano zinc oxide, nano zirconium phosphate silver or nano silicon dioxide silver, the purity of the antibacterial powder is higher than 99%, and the particle size of the antibacterial powder is 10-50 nm.
4. The method for preparing an antibacterial agent used in the process for producing the antibacterial polished tile according to claim 2, wherein the raw materials of the antibacterial agent comprise, by mass: 1 to 30 percent of antibacterial powder, 0.1 to 5 percent of dispersant and 60 to 98.9 percent of water.
5. An antibacterial polished tile, characterized in that it is produced according to the process for producing an antibacterial polished tile according to claim 1.
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| CN112175516A (en) * | 2020-10-09 | 2021-01-05 | 肇庆高新区纳德科技有限公司 | Novel super-clean and bright nano antifouling agent for anti-skid antibacterial ceramic tiles |
| CN112341938A (en) * | 2020-10-26 | 2021-02-09 | 佛山市东鹏陶瓷有限公司 | Ceramic tile polishing solution containing composite antibacterial photocatalytic material and preparation process thereof |
| CN113248146B (en) * | 2021-06-03 | 2021-09-24 | 佛山欧神诺陶瓷有限公司 | Composite process antibacterial ceramic tile and preparation method thereof |
| CN113387726A (en) * | 2021-08-17 | 2021-09-14 | 广东新明珠陶瓷集团有限公司 | Antibacterial ceramic tile and preparation method thereof |
| CN114230325B (en) * | 2021-12-31 | 2023-04-18 | 重庆锦晖陶瓷有限公司 | Preparation method of antibacterial ceramic product |
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